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EP3439505A2 - Furniture drive - Google Patents

Furniture drive

Info

Publication number
EP3439505A2
EP3439505A2 EP17706403.7A EP17706403A EP3439505A2 EP 3439505 A2 EP3439505 A2 EP 3439505A2 EP 17706403 A EP17706403 A EP 17706403A EP 3439505 A2 EP3439505 A2 EP 3439505A2
Authority
EP
European Patent Office
Prior art keywords
driver
plunger
furniture drive
holding device
furniture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17706403.7A
Other languages
German (de)
French (fr)
Other versions
EP3439505B1 (en
Inventor
Christof GÖTZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Julius Blum GmbH
Original Assignee
Julius Blum GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Julius Blum GmbH filed Critical Julius Blum GmbH
Publication of EP3439505A2 publication Critical patent/EP3439505A2/en
Application granted granted Critical
Publication of EP3439505B1 publication Critical patent/EP3439505B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/467—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-closing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/473—Braking devices, e.g. linear or rotational dampers or friction brakes; Buffers; End stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/16—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0091—Drawer movement damping
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/23—Combinations of elements of elements of different categories
    • E05Y2800/24—Combinations of elements of elements of different categories of springs and brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

Definitions

  • the present invention relates to a furniture drive for drawing a movably mounted furniture part in a closed end position relative to a furniture body, comprising:
  • a driver for retracting the movable furniture part wherein the driver is at least partially movably mounted along a linear travel path and which is releasably coupled to the movable furniture part,
  • damping device for damping a movement of the driver in the feed direction, the damping device having a fluid chamber and a plunger displaceably mounted relative to the fluid chamber,
  • the invention relates to a drawer extension with a furniture drive of the type to be described.
  • Object of the present invention is to propose a furniture drive of the type mentioned, with damage to the furniture drive, in particular the damping device can be prevented in an overload case. This is achieved by the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent subclaims.
  • the plunger when a force acting in the direction of pull is exceeded, the plunger can be moved on the catch through an opening of the holding device and thus the catch can be decoupled from the plunger.
  • the holding device is designed as a linearly effective overload clutch, which causes a decoupling between the driver and the plunger above a force acting in the direction of pulling force on the driver (ie, when the movable furniture part catapults with excessive manual force or force in the closing direction) so that the plunger moves through such an excessive force on the driver through an opening of the holding device and a continued, non-destructive translational movement of the plunger takes place relative to the driver.
  • the risk of damage especially bursting of the damper housing and leakage of a damping medium due to excessive pressurization
  • the plunger is movable even when exceeding an acting opposite to the feed direction force on the driver through a further opening of the holding device and thus the driver can be decoupled from the plunger.
  • a decoupling of the plunger from the driver can thus be brought about both in a pull-in direction acting in the feed direction and in an extension in the direction of the driver.
  • the holding device may comprise at least one holding element, which is the plunger relative to a predetermined force on the driver Holds holding device and which allows above a predetermined force on the driver a non-destructive translational movement of the plunger relative to the driver. It can be provided that the at least one retaining element is acted upon by a force accumulator.
  • This energy storage device may be formed, for example, by a mechanical spring element or, alternatively, also by an inherent elasticity of the retaining element.
  • the drawer extension comprises a to be fastened to a furniture body carcass rail and at least one pull-out, which is movably mounted relative to the carcass rail between a closed position and an open position, and a question in question furniture drive for pulling the pull-out in the closed position.
  • FIG. 1 is a perspective view of a piece of furniture with a furniture body and relatively movably mounted drawers
  • Fig. 2 shows an embodiment of a furniture drive
  • Fig. 4a, 4b is a side view of the furniture drive, wherein the plunger by a
  • Fig. 5a, 5b is a side view of the furniture drive, wherein the plunger by a
  • Fig. 1 shows a piece of furniture 1 with a cabinet-shaped furniture body 2, wherein movable furniture parts 3 are movably mounted in the form of drawers on Schubladenauszieh Entryen 4 relative to the furniture body 2.
  • the drawers each have one Front panel 5, a drawer bottom 6, drawer side walls 7 and a rear wall 8.
  • the drawer pull-out guides 4 each comprise a carcass rail 9, which is to be fastened to the furniture body 2 via fastening sections 12a, 12b, at least one pull-out rail 10 displaceably mounted relative to the carcass rail 9, which is to be connected to the drawer side wall 7, and optionally a middle rail 11, which for the realization of a full extension of the drawer between the carcass rail 9 and the pull-out rail 10 is movably mounted.
  • the drawer pull-out guide 4 has a furniture drive 13, through which the pull-out rail 10 is retracted towards the end of the closing movement by the force of a spring device 17 (FIG. 2) and this spring-assisted pull-in movement is braked by a damping device 19 of the furniture drive 13.
  • Fig. 2 shows an embodiment of a furniture drive 13 in an exploded view.
  • the furniture drive 13 has a housing 18, wherein a pivotable about a hinge axis 15 driver 14 for releasable coupling with the movable furniture part 3 along a in a longitudinal direction (L) of the housing 18 extending linear travel path 31 a (Fig. 3a) is slidably mounted ,
  • a spring device 17 preferably with at least one tension spring
  • the driver 14 or the movable furniture part 3 coupled thereto can be retracted in the feed direction 22.
  • the spring device 17 has a first fastening point 17a, which is connected in the mounting position with a stationary bearing part 23, the second fastening point 17b of the spring device 17 is connected to a bearing 16b of a holding device 16, which is connected to the driver 14 via the hinge axis 15.
  • the holding device 16 has at least one guide element 33, by means of which the holding device 16, together with the driver 14, is displaceably mounted relative to the housing 18 along a guideway 18a.
  • a damping device 19 is provided in the form of a linear damper with a fluid chamber 20 and a relatively movable plunger 21 in the form of a piston rod.
  • the fluid chamber 20 is formed in a fluid cylinder, which is also in mounting position with one end to the bearing part 23 in connection.
  • the arranged between the plunger 21 and the driver 14 Holding device 16 is provided for releasably holding the plunger 21 relative to the driver 14 so that the plunger 21 when exceeding a force acting in the feed direction 22 force on the driver 14 through an opening 24 of the holding device 16 is movable and so the driver 14 from the plunger 21 is decoupled ,
  • the holding device 16 has in the figure shown two holding elements 28a and 28b, which define a receiving chamber 26 for receiving a coupling piece 29 of the plunger 21.
  • a force accumulator 30 which is formed in the illustrated embodiment as a two holding elements 28a, 28b embracing spring clip made of spring steel, the coupling piece 29 of the plunger 21 is held in the receiving chamber 26 in position.
  • the arranged on the plunger 21 or trained coupling piece 29 has a larger diameter than the plunger 21, wherein the coupling piece 29 held in a normal operation (ie, below a predetermined force on the driver 14) in this receiving chamber 26 of the holding device 16 and thus the coupling between the holding device 16 and the plunger 21 is ensured.
  • the coupling piece 29 of the plunger 21 can move through an opening 24 of the holding device 16 therethrough, so that the driver 14 can be decoupled from the plunger 21.
  • the coupling piece 29 can retract a force acting in the feed direction 22 force on the driver 14 in an escape channel 27 of the holding device 16, wherein a longitudinal direction of the escape channel 27 extends coaxially to a longitudinal direction of the plunger 21.
  • this escape channel 27 is not absolutely necessary, for example, it would also be sufficient to let the coupling piece 29 of the plunger 21 proceed from the receiving chamber 26 into a free space present laterally next to the receiving chamber 26.
  • the coupling piece 29 of the plunger 21 can move through a further opening 25 of the holding device 16 therethrough, so that the driver 14 can be decoupled from the plunger 21.
  • this counter to the feed direction 22 acting overload ie in an excessive pulling movement on the movable furniture part 3 in the opening direction
  • FIG. 3a shows the furniture drive 13 in a side view, with the driver 14 mounted in the housing 18 being marked with a dashed line.
  • the housing 18 has a linear travel 31 a for the movable mounting of the driver 14, wherein the linear travel path 31 a, a bend 31 b connects, which is provided for releasably locking the driver 14 in a biased parking position.
  • the driver 14 is thus between the parking position shown, in which the spring device 17 is tensioned, and a retracted end position, in which the spring device 17 is largely relaxed, along the linear travel 31 a movably mounted.
  • the driver 14 includes a guide pin 14 a, through which the driver 14 along the bend 31 b and along the linear travel 31 a is guided displaceably.
  • the driver 14 is provided for releasable coupling with the movable furniture part 3 with a notch 32 which is detachably coupled with a arranged on the movable furniture part 3 coupling pin. Towards the end of the closing movement of the movable furniture part 3 of this coupling pin moves into the notch 32, so that the driver 14 is tilted out of the parking position shown and retracted by the force of the relaxing spring device 17 in the feed direction 22.
  • the driver 14 is pivotally connected via the hinge axis 15 with the holding device 16, wherein a arranged on the holding device 16 guide member 33 along a guide 18 a of the housing 18 is slidably mounted.
  • a damping device 19 is provided with a fluid chamber 20, wherein the plunger 21 moves in a direction of movement of the driver 14 in the feed direction 22 in the fluid chamber 20 and the movement of the driver 14 is decelerated by a damping fluid located in the fluid chamber 20.
  • a force acting in the feed direction 22 force is applied to the driver 14 of the plunger 21 is moved through an opening 24 (Fig. 2) and can retract into the escape channel 27, so that the driver 14 is decoupled from the plunger 21.
  • the coupling piece 22 of the tappet 21 is moved through a further opening 25 (FIG. 2) of the holding device 16, so that the driver 14 likewise exerts excessive pulling action on the movable furniture part 3 can be decoupled from the plunger 21.
  • FIG. 3b shows the furniture drive 13 shown in FIG. 3a in a perspective view.
  • Fig. 4a shows the furniture drive 13 in a side view, wherein the plunger 21 is decoupled by exceeding a force acting in the feed direction 22 force on the driver 14 of this. Due to this excessive exertion of force on the driver 14 in the feed direction 22 namely the coupling piece 29 of the plunger 21 has been urged starting from the receiving chamber 26 through the opening 24 into the escape channel 27 of the holding device 16, so that the driver 14 without further relative movement between plunger 21 and Fluid chamber 20 is further movable in the feed direction 22. By a manual pulling movement on the movable furniture part 3, the coupling piece 29 of the plunger 21 can be coupled to the receiving chamber 26 of the holding device 16 again.
  • 4b shows the area circled in FIG. 4a in an enlarged view.
  • FIG. 5a shows the furniture drive 13 in a side view, wherein the plunger 21 is decoupled from exceeding this by a force acting against the feed direction 22 on the driver 14 of this.
  • the two holding elements 28a, 28b acted upon by a force accumulator 30, said force accumulator 30 of a mechanical Spring element or by an inherent elasticity of the holding elements 28a, 28b may be formed.
  • the holding elements 28a, 28b are formed deformable or bendable above a predetermined force on the driver 14 in a direction transverse to the longitudinal direction of the plunger 21 direction, so that the driver 14 can be decoupled from the plunger 21.
  • the damping device 19 has a relative to the fluid chamber 20 slidably mounted piston rod, wherein the plunger 21 is formed by the piston rod.
  • the plunger 21 is formed by the piston rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawers Of Furniture (AREA)
  • Vibration Prevention Devices (AREA)
  • Vibration Dampers (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention relates to a furniture drive (13) for retracting a movably supported furniture part (3) in a closed end position relative to a furniture body (2), comprising: - a driver (14) for retracting the movable furniture part (3), wherein the driver (14) is displaceably mounted at least in sections along a linear travel path (31a) and can be detachably coupled to the movable furniture part (3), - a spring device (17) for applying force to the driver (14) in a retraction direction (22), - a damping device (19) for damping a movement of the driver (14) in the retraction direction (22), the damping device (19) comprising a fluid chamber (20) and a tappet (21) which is displaceably mounted relative to the fluid chamber (20), - a holding device (16) arranged between the tappet (21) and the driver (14), the holding device (16) holding the tappet (21) relative to the driver (14), wherein the tappet (21) is movable through an opening (24) of the holding device (16) when a force acting upon the driver (14) in the retraction direction (22) is exceeded, whereby the driver (14) can be decoupled from the tappet (21).

Description

Möbelantrieb  furniture drive

Die vorliegende Erfindung bezieht sich auf einen Möbelantrieb zum Einziehen eines bewegbar gelagerten Möbelteiles in eine geschlossene Endlage relativ zu einem Möbelkorpus, umfassend: The present invention relates to a furniture drive for drawing a movably mounted furniture part in a closed end position relative to a furniture body, comprising:

- einen Mitnehmer zum Einziehen des bewegbaren Möbelteiles, wobei der Mitnehmer zumindest abschnittsweise entlang eines linearen Verfahrweges verfahrbar gelagert ist und welcher mit dem bewegbaren Möbelteil lösbar koppelbar ist,  a driver for retracting the movable furniture part, wherein the driver is at least partially movably mounted along a linear travel path and which is releasably coupled to the movable furniture part,

- eine Federvorrichtung zur Kraftbeaufschlagung des Mitnehmers in eine Einzugsrichtung,  a spring device for applying force to the driver in a feed direction,

- eine Dämpfvorrichtung zum Dämpfen einer Bewegung des Mitnehmers in Einzugsrichtung, wobei die Dämpfvorrichtung eine Fluidkammer und einen relativ zur Fluidkammer verschiebbar gelagerten Stößel aufweist,  a damping device for damping a movement of the driver in the feed direction, the damping device having a fluid chamber and a plunger displaceably mounted relative to the fluid chamber,

- eine Haltevorrichtung, welche zwischen dem Stößel und dem Mitnehmer angeordnet ist, wobei die Haltevorrichtung den Stößel relativ zum Mitnehmer hält. Im Weiteren betrifft die Erfindung eine Schubladenausziehführung mit einem Möbelantrieb der zu beschreibenden Art.  - A holding device which is arranged between the plunger and the driver, wherein the holding device holds the plunger relative to the driver. Furthermore, the invention relates to a drawer extension with a furniture drive of the type to be described.

In der DE 20 2005 009 860 U1 ist eine Schließ- und Einzugsvorrichtung für Schubladen offenbart, wobei ein mit der Schublade koppelbarer Mitnehmer mit einem Kugelkopf einer Koppelstange lösbar gekoppelt ist. Der Kugelkopf der Koppelstange greift dabei in eine Aufnahme des Mitnehmers ein, wobei sich die Aufnahme des Mitnehmers bei Einwirkung einer auf die Schublade ausgeübten Zugkraft elastisch aufweitet und damit den Kugelkopf in einem Überlastfall freigibt. Für diese Überlastkupplung steht allerdings ausreichend Raum zur Verfügung, weil der Mitnehmer bei einer übermäßigen Zugbewegung auf die Schublade in Ausziehrichtung bewegt und sich somit der Abstand zwischen dem Mitnehmer und der Koppelstange vergrößert. Aufgabe der vorliegenden Erfindung ist es, einen Möbelantrieb der eingangs erwähnten Gattung vorzuschlagen, wobei Beschädigungen des Möbelantriebes, insbesondere der Dämpfvorrichtung, in einem Überlastfall verhindert werden können. Dies wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Unteransprüchen angegeben. In DE 20 2005 009 860 U1 discloses a closing and catching device for drawers, wherein a coupled with the drawer catch is releasably coupled to a ball head of a coupling rod. The ball head of the coupling rod engages in a receptacle of the driver, wherein the receptacle of the driver elastically expands upon the action of a force exerted on the drawer tensile force and thus releases the ball in an overload case. For this overload clutch, however, there is sufficient space available, because the driver moves in an excessive pulling movement on the drawer in the withdrawal direction and thus increases the distance between the driver and the coupling rod. Object of the present invention is to propose a furniture drive of the type mentioned, with damage to the furniture drive, in particular the damping device can be prevented in an overload case. This is achieved by the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent subclaims.

Gemäß der Erfindung ist also vorgesehen, dass der Stößel bei Überschreitung einer in Einzugsrichtung wirkenden Kraftausübung auf den Mitnehmer durch eine Öffnung der Haltevorrichtung hindurch bewegbar und so der Mitnehmer vom Stößel entkoppelbar ist. According to the invention, it is thus provided that when a force acting in the direction of pull is exceeded, the plunger can be moved on the catch through an opening of the holding device and thus the catch can be decoupled from the plunger.

Mit anderen Worten ist die Haltevorrichtung als linear wirksame Überlastkupplung ausgebildet, welche oberhalb einer in Einzugsrichtung wirkenden Kraftausübung auf den Mitnehmer (d.h. wenn das bewegbare Möbelteil mit übermäßiger manueller Kraft bzw. Gewalt in Schließrichtung katapultiert wird) eine Entkopplung zwischen dem Mitnehmer und dem Stößel herbeiführt, sodass der Stößel bei einer solchen übermäßigen Krafteinwirkung auf den Mitnehmer durch eine Öffnung der Haltevorrichtung hindurchbewegt und eine fortgesetzte, zerstörungsfreie translatorische Bewegung des Stößels relativ zum Mitnehmer erfolgt. Somit kann die Gefahr einer Beschädigung (insbesondere ein Aufplatzen des Dämpfergehäuses und ein Austritt eines Dämpfungsmediums aufgrund übermäßiger Druckbeaufschlagung) durch einen in den Möbelkorpus einfahrenden Mitnehmer verhindert werden. In other words, the holding device is designed as a linearly effective overload clutch, which causes a decoupling between the driver and the plunger above a force acting in the direction of pulling force on the driver (ie, when the movable furniture part catapults with excessive manual force or force in the closing direction) so that the plunger moves through such an excessive force on the driver through an opening of the holding device and a continued, non-destructive translational movement of the plunger takes place relative to the driver. Thus, the risk of damage (especially bursting of the damper housing and leakage of a damping medium due to excessive pressurization) can be prevented by a driving into the furniture carcass driver.

Vorzugsweise ist vorgesehen, dass der Stößel auch bei Überschreitung einer entgegen der Einzugsrichtung wirkenden Kraftausübung auf den Mitnehmer durch eine weitere Öffnung der Haltevorrichtung hindurch bewegbar und so der Mitnehmer vom Stößel entkoppelbar ist. Mit anderen Worten kann also sowohl bei einem in Einzugsrichtung als auch bei einem in Auszugsrichtung des Mitnehmers wirkenden Überlastfall eine Entkopplung des Stößels vom Mitnehmer herbeigeführt werden. It is preferably provided that the plunger is movable even when exceeding an acting opposite to the feed direction force on the driver through a further opening of the holding device and thus the driver can be decoupled from the plunger. In other words, a decoupling of the plunger from the driver can thus be brought about both in a pull-in direction acting in the feed direction and in an extension in the direction of the driver.

Die Haltevorrichtung kann zumindest ein Halteelement aufweisen, welches den Stößel unterhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer relativ zur Halteeinrichtung hält und welches oberhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer eine zerstörungsfreie translatorische Bewegung des Stößels relativ zum Mitnehmer gestattet. Hierbei kann vorgesehen sein, dass das zumindest eine Halteelement von einem Kraftspeicher beaufschlagt ist. Dieser Kraftspeicher kann beispielsweise von einem mechanischen Federelement oder alternativ auch von einer Eigenelastizität des Halteelementes gebildet sein. The holding device may comprise at least one holding element, which is the plunger relative to a predetermined force on the driver Holds holding device and which allows above a predetermined force on the driver a non-destructive translational movement of the plunger relative to the driver. It can be provided that the at least one retaining element is acted upon by a force accumulator. This energy storage device may be formed, for example, by a mechanical spring element or, alternatively, also by an inherent elasticity of the retaining element.

Die erfindungsgemäße Schubladenausziehführung umfasst eine an einem Möbelkorpus zu befestigende Korpusschiene und zumindest eine Ausziehschiene, welche relativ zur Korpusschiene zwischen einer Schließstellung und einer Offenstellung verfahrbar gelagert ist, sowie einen in Rede stehenden Möbelantrieb zum Einziehen der Ausziehschiene in die Schließstellung. The drawer extension according to the invention comprises a to be fastened to a furniture body carcass rail and at least one pull-out, which is movably mounted relative to the carcass rail between a closed position and an open position, and a question in question furniture drive for pulling the pull-out in the closed position.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand der nachfolgenden Figurenbeschreibung erläutert. Dabei zeigt bzw. zeigen: Further details and advantages of the invention will be explained with reference to the following description of the figures. It shows or show:

Fig. 1 eine perspektivische Darstellung eines Möbels mit einem Möbelkorpus und relativ dazu verfahrbar gelagerten Schubladen, 1 is a perspective view of a piece of furniture with a furniture body and relatively movably mounted drawers,

Fig. 2 ein Ausführungsbeispiel eines Möbelantriebes  Fig. 2 shows an embodiment of a furniture drive

Explosionsdarstellung,  Exploded

Fig. 3a, 3b der Möbelantrieb in einer Seitenansicht sowie in einer perspektivischen Darstellung,  3a, 3b of the furniture drive in a side view and in a perspective view,

Fig. 4a, 4b eine Seitenansicht des Möbelantriebes, wobei der Stößel durch eine  Fig. 4a, 4b is a side view of the furniture drive, wherein the plunger by a

Überschreitung einer in Einzugsrichtung wirkenden Kraftausübung auf den Mitnehmer vom Mitnehmer entkoppelbar ist, sowie eine vergrößerte Detaildarstellung hierzu,  Exceeding a force acting in the feed direction of force on the driver can be decoupled from the driver, as well as an enlarged detail of this,

Fig. 5a, 5b eine Seitenansicht des Möbelantriebes, wobei der Stößel durch eine  Fig. 5a, 5b is a side view of the furniture drive, wherein the plunger by a

Überschreitung einer entgegen der Einzugsrichtung wirkenden Kraftausübung auf den Mitnehmer vom Mitnehmer entkoppelbar ist, ist, sowie eine vergrößerte Detaildarstellung hierzu.  Exceeding an acting opposite to the direction of pull force on the driver can be decoupled from the driver is, as well as an enlarged detail of this.

Fig. 1 zeigt ein Möbel 1 mit einem schrankförmigen Möbelkorpus 2, wobei bewegbare Möbelteile 3 in Form von Schubladen über Schubladenausziehführungen 4 relativ zum Möbelkorpus 2 verfahrbar gelagert sind. Die Schubladen weisen jeweils eine Frontblende 5, einen Schubladenboden 6, Schubladenseitenwände 7 und eine Rückwand 8 auf. Die Schubladenausziehführungen 4 umfassen jeweils eine Korpusschiene 9, welche über Befestigungsabschnitte 12a, 12b am Möbelkorpus 2 zu befestigen ist, zumindest eine relativ zur Korpusschiene 9 verschiebbar gelagerte Ausziehschiene 10, welche mit der Schubladenseitenwand 7 zu verbinden ist, sowie gegebenenfalls eine Mittelschiene 1 1 , welche zur Realisierung eines Vollauszuges der Schublade zwischen der Korpusschiene 9 und der Ausziehschiene 10 verfahrbar gelagert ist. Ferner weist die Schubladenausziehführung 4 einen Möbelantrieb 13 auf, durch den die Ausziehschiene 10 gegen Ende der Schließbewegung durch die Kraft einer Federvorrichtung 17 (Fig. 2) eingezogen und wobei diese federunterstützte Einzugsbewegung durch eine Dämpfvorrichtung 19 des Möbelantriebes 13 abgebremst wird. Fig. 1 shows a piece of furniture 1 with a cabinet-shaped furniture body 2, wherein movable furniture parts 3 are movably mounted in the form of drawers on Schubladenausziehführungen 4 relative to the furniture body 2. The drawers each have one Front panel 5, a drawer bottom 6, drawer side walls 7 and a rear wall 8. The drawer pull-out guides 4 each comprise a carcass rail 9, which is to be fastened to the furniture body 2 via fastening sections 12a, 12b, at least one pull-out rail 10 displaceably mounted relative to the carcass rail 9, which is to be connected to the drawer side wall 7, and optionally a middle rail 11, which for the realization of a full extension of the drawer between the carcass rail 9 and the pull-out rail 10 is movably mounted. Furthermore, the drawer pull-out guide 4 has a furniture drive 13, through which the pull-out rail 10 is retracted towards the end of the closing movement by the force of a spring device 17 (FIG. 2) and this spring-assisted pull-in movement is braked by a damping device 19 of the furniture drive 13.

Fig. 2 zeigt ein Ausführungsbeispiel eines Möbelantriebes 13 in einer Explosionsdarstellung. Der Möbelantrieb 13 weist ein Gehäuse 18 auf, wobei ein um eine Gelenkachse 15 schwenkbarer Mitnehmer 14 zur lösbaren Kopplung mit dem bewegbaren Möbelteil 3 entlang eines in einer Längsrichtung (L) des Gehäuses 18 verlaufenden linearen Verfahrweges 31 a (Fig. 3a) verschiebbar gelagert ist. Zur Kraftbeaufschlagung des Mitnehmers 14 in Einzugsrichtung 22 ist eine Federvorrichtung 17 (vorzugsweise mit zumindest einer Zugfeder) vorgesehen, durch welche der Mitnehmer 14 bzw. das damit gekoppelte bewegbare Möbelteil 3 in Einzugsrichtung 22 einziehbar ist. Die Federvorrichtung 17 weist eine erste Befestigungsstelle 17a auf, welche in Montagelage mit einem stationären Lagerteil 23 verbunden ist, die zweite Befestigungsstelle 17b der Federvorrichtung 17 ist mit einem Lager 16b einer Haltevorrichtung 16 verbunden, welche mit dem Mitnehmer 14 über die Gelenkachse 15 verbunden ist. Die Haltevorrichtung 16 weist zumindest ein Führungselement 33 auf, durch welches die Haltevorrichtung 16 zusammen mit dem Mitnehmer 14 relativ zum Gehäuse 18 entlang einer Führungsbahn 18a verschiebbar gelagert ist. Zur Dämpfung der federunterstützten Einzugsbewegung des Mitnehmers 14 in Einzugsrichtung 22 ist eine Dämpfvorrichtung 19 in Form eines Lineardämpfers mit einer Fluidkammer 20 und einem relativ dazu bewegbaren Stößel 21 in Form einer Kolbenstange vorgesehen. Die Fluidkammer 20 ist in einem Fluidzylinder ausgebildet, welcher in Montagelage mit einem Ende ebenfalls mit dem Lagerteil 23 in Verbindung steht. Die zwischen dem Stößel 21 und dem Mitnehmer 14 angeordnete Haltevorrichtung 16 ist zum lösbaren Halten des Stößels 21 relativ zum Mitnehmer 14 vorgesehen, sodass der Stößel 21 bei Überschreitung einer in Einzugsrichtung 22 wirkenden Kraftausübung auf den Mitnehmer 14 durch eine Öffnung 24 der Haltevorrichtung 16 hindurch bewegbar und so der Mitnehmer 14 vom Stößel 21 entkoppelbar ist. Fig. 2 shows an embodiment of a furniture drive 13 in an exploded view. The furniture drive 13 has a housing 18, wherein a pivotable about a hinge axis 15 driver 14 for releasable coupling with the movable furniture part 3 along a in a longitudinal direction (L) of the housing 18 extending linear travel path 31 a (Fig. 3a) is slidably mounted , For applying force to the driver 14 in the feed direction 22, a spring device 17 (preferably with at least one tension spring) is provided, through which the driver 14 or the movable furniture part 3 coupled thereto can be retracted in the feed direction 22. The spring device 17 has a first fastening point 17a, which is connected in the mounting position with a stationary bearing part 23, the second fastening point 17b of the spring device 17 is connected to a bearing 16b of a holding device 16, which is connected to the driver 14 via the hinge axis 15. The holding device 16 has at least one guide element 33, by means of which the holding device 16, together with the driver 14, is displaceably mounted relative to the housing 18 along a guideway 18a. For damping the spring-assisted retraction movement of the driver 14 in the feed direction 22, a damping device 19 is provided in the form of a linear damper with a fluid chamber 20 and a relatively movable plunger 21 in the form of a piston rod. The fluid chamber 20 is formed in a fluid cylinder, which is also in mounting position with one end to the bearing part 23 in connection. The arranged between the plunger 21 and the driver 14 Holding device 16 is provided for releasably holding the plunger 21 relative to the driver 14 so that the plunger 21 when exceeding a force acting in the feed direction 22 force on the driver 14 through an opening 24 of the holding device 16 is movable and so the driver 14 from the plunger 21 is decoupled ,

Die Haltevorrichtung 16 weist in der gezeigten Figur zwei Halteelemente 28a und 28b auf, welche eine Aufnahmekammer 26 zur Aufnahme eines Koppelstückes 29 des Stößels 21 begrenzen. Über einen Kraftspeicher 30, welcher im gezeigten Ausführungsbeispiel als eine die beiden Halteelemente 28a, 28b umgreifende Federklammer aus Federstahl ausgebildet ist, wird das Koppelstück 29 des Stößels 21 in der Aufnahmekammer 26 in Position gehalten. Das am Stößel 21 angeordnete oder ausgebildete Koppelstück 29 weist einen größeren Durchmesser als der Stößel 21 auf, wobei das Koppelstück 29 in einem Normalbetrieb (d.h. unterhalb einer vorgegebenen Kraftausübung auf den Mitnehmer 14) in dieser Aufnahmekammer 26 der Haltevorrichtung 16 gehalten und somit die Kopplung zwischen der Haltevorrichtung 16 und dem Stößel 21 gewährleistet ist. Bei Überschreitung einer auf den Mitnehmer 14 ausgeübten Krafteinwirkung in Einzugsrichtung 22 kann sich das Koppelstück 29 des Stößels 21 durch eine Öffnung 24 der Haltevorrichtung 16 hindurch bewegen, sodass der Mitnehmer 14 vom Stößel 21 entkoppelbar ist. Im gezeigten Ausführungsbeispiel kann das Koppelstück 29 bei Überschreitung einer in Einzugsrichtung 22 wirkenden Krafteinwirkung auf den Mitnehmer 14 in einen Ausweichkanal 27 der Haltevorrichtung 16 einfahren, wobei eine Längsrichtung des Ausweichkanals 27 koaxial zu einer Längsrichtung des Stößels 21 verläuft. Dieser Ausweichkanal 27 ist allerdings nicht zwingend notwendig, es würde beispielsweise auch genügen, das Koppelstück 29 des Stößels 21 ausgehend von der Aufnahmekammer 26 in einen seitlich neben der Aufnahmekammer 26 vorhandenen Freiraum einfahren zu lassen. The holding device 16 has in the figure shown two holding elements 28a and 28b, which define a receiving chamber 26 for receiving a coupling piece 29 of the plunger 21. Via a force accumulator 30, which is formed in the illustrated embodiment as a two holding elements 28a, 28b embracing spring clip made of spring steel, the coupling piece 29 of the plunger 21 is held in the receiving chamber 26 in position. The arranged on the plunger 21 or trained coupling piece 29 has a larger diameter than the plunger 21, wherein the coupling piece 29 held in a normal operation (ie, below a predetermined force on the driver 14) in this receiving chamber 26 of the holding device 16 and thus the coupling between the holding device 16 and the plunger 21 is ensured. When exceeding a force exerted on the driver 14 force in the feed direction 22, the coupling piece 29 of the plunger 21 can move through an opening 24 of the holding device 16 therethrough, so that the driver 14 can be decoupled from the plunger 21. In the embodiment shown, the coupling piece 29 can retract a force acting in the feed direction 22 force on the driver 14 in an escape channel 27 of the holding device 16, wherein a longitudinal direction of the escape channel 27 extends coaxially to a longitudinal direction of the plunger 21. However, this escape channel 27 is not absolutely necessary, for example, it would also be sufficient to let the coupling piece 29 of the plunger 21 proceed from the receiving chamber 26 into a free space present laterally next to the receiving chamber 26.

Bei Überschreitung einer entgegen der Einzugsrichtung 22 wirkenden Kraftausübung auf den Mitnehmer 14 kann sich hingegen das Koppelstück 29 des Stößels 21 durch eine weitere Öffnung 25 der Haltevorrichtung 16 hindurch bewegen, sodass der Mitnehmer 14 vom Stößel 21 entkoppelbar ist. Bei dieser entgegen der Einzugsrichtung 22 wirkenden Überlast (d.h. bei einer übermäßigen Zugbewegung auf das bewegbare Möbelteil 3 in Öffnungsrichtung) fährt das Koppelstück 29 aus der Aufnahmekammer 26 in einen seitlich neben der Aufnahmekammer 26 vorhandenen Freiraum hinaus und vergrößert anschließend seinen Abstand zur Haltevorrichtung 16. Durch Bewegen des bewegbaren Möbelteiles 3 können der Mitnehmer 17 und der Stößel 21 wieder aufeinander zu bewegt werden, sodass der Stößel 21 wieder in die Aufnahmekammer 26 einfährt und die Kopplung zwischen Stößel 21 und Haltevorrichtung 16 wieder hergestellt wird. When exceeding a counter to the feed direction 22 force acting on the driver 14, however, the coupling piece 29 of the plunger 21 can move through a further opening 25 of the holding device 16 therethrough, so that the driver 14 can be decoupled from the plunger 21. In this counter to the feed direction 22 acting overload (ie in an excessive pulling movement on the movable furniture part 3 in the opening direction) moves the coupling piece 29 from the receiving chamber 26th By moving the movable furniture part 3 of the driver 17 and the plunger 21 can be moved toward each other again, so that the plunger 21 retracts into the receiving chamber 26 and the coupling between plunger 21 and holding device 16 is restored.

Fig. 3a zeigt den Möbelantrieb 13 in einer Seitenansicht, wobei der im Gehäuse 18 gelagerte Mitnehmer 14 mit gestrichelter Line gekennzeichnet ist. Das Gehäuse 18 weist einen linearen Verfahrweg 31 a zur verfahrbaren Lagerung des Mitnehmers 14 auf, wobei sich an den linearen Verfahrweg 31 a eine Abbiegung 31 b anschließt, welche zur lösbaren Verriegelung des Mitnehmers 14 in einer vorgespannten Parkposition vorgesehen ist. Der Mitnehmer 14 ist also zwischen der gezeigten Parkposition, in welcher die Federvorrichtung 17 gespannt ist, und einer eingezogenen Endlage, in welcher die Federvorrichtung 17 weitgehend entspannt ist, entlang des linearen Verfahrweges 31 a bewegbar gelagert. Der Mitnehmer 14 umfasst einen Führungszapfen 14a, durch welchen der Mitnehmer 14 entlang der Abbiegung 31 b und entlang des linearen Verfahrweges 31 a verschiebbar geführt ist. Überdies ist der Mitnehmer 14 zur lösbaren Kopplung mit dem bewegbaren Möbelteil 3 mit einer Kerbe 32 versehen, welche mit einem am bewegbaren Möbelteil 3 angeordneten Koppelzapfen lösbar koppelbar ist. Gegen Ende der Schließbewegung des bewegbaren Möbelteiles 3 fährt dieser Koppelzapfen in die Kerbe 32 ein, sodass der Mitnehmer 14 aus der gezeigten Parkposition herausgekippt und durch die Kraft der sich entspannenden Federvorrichtung 17 in Einzugsrichtung 22 eingezogen wird. Der Mitnehmer 14 ist über die Gelenkachse 15 mit der Haltevorrichtung 16 schwenkbar verbunden, wobei ein an der Haltevorrichtung 16 angeordnetes Führungselement 33 entlang einer Führung 18a des Gehäuses 18 verschiebbar gelagert ist. Zur Dämpfung dieser federunterstützten Einzugsbewegung ist eine Dämpfvorrichtung 19 mit einer Fluidkammer 20 vorgesehen, wobei der Stößel 21 bei einer Bewegung des Mitnehmers 14 in Einzugsrichtung 22 in die Fluidkammer 20 einfährt und die Bewegung des Mitnehmers 14 durch ein in der Fluidkammer 20 befindliches Dämpfungsfluid abgebremst wird. Bei Überschreitung einer in Einzugsrichtung 22 wirkenden Kraftausübung auf den Mitnehmer 14 wird der Stößel 21 durch eine Öffnung 24 (Fig. 2) hindurchbewegt und kann in den Ausweichkanal 27 einfahren, sodass der Mitnehmer 14 vom Stößel 21 entkoppelt wird. Bei Überschreitung einer entgegen der Einzugsrichtung 22 wirkenden Kraftausübung auf den Mitnehmer 14 wird das Koppelstück 22 des Stößels 21 durch eine weitere Öffnung 25 (Fig. 2) der Haltevorrichtung 16 hindurch bewegt, sodass der Mitnehmer 14 bei einer übermäßigen Zugausübung auf das bewegbare Möbelteil 3 ebenfalls vom Stößel 21 entkoppelbar ist. Fig. 3b zeigt den in Fig. 3a gezeigten Möbelantrieb 13 in einer perspektivischen Ansicht. FIG. 3a shows the furniture drive 13 in a side view, with the driver 14 mounted in the housing 18 being marked with a dashed line. The housing 18 has a linear travel 31 a for the movable mounting of the driver 14, wherein the linear travel path 31 a, a bend 31 b connects, which is provided for releasably locking the driver 14 in a biased parking position. The driver 14 is thus between the parking position shown, in which the spring device 17 is tensioned, and a retracted end position, in which the spring device 17 is largely relaxed, along the linear travel 31 a movably mounted. The driver 14 includes a guide pin 14 a, through which the driver 14 along the bend 31 b and along the linear travel 31 a is guided displaceably. Moreover, the driver 14 is provided for releasable coupling with the movable furniture part 3 with a notch 32 which is detachably coupled with a arranged on the movable furniture part 3 coupling pin. Towards the end of the closing movement of the movable furniture part 3 of this coupling pin moves into the notch 32, so that the driver 14 is tilted out of the parking position shown and retracted by the force of the relaxing spring device 17 in the feed direction 22. The driver 14 is pivotally connected via the hinge axis 15 with the holding device 16, wherein a arranged on the holding device 16 guide member 33 along a guide 18 a of the housing 18 is slidably mounted. To damp this spring-assisted retraction movement, a damping device 19 is provided with a fluid chamber 20, wherein the plunger 21 moves in a direction of movement of the driver 14 in the feed direction 22 in the fluid chamber 20 and the movement of the driver 14 is decelerated by a damping fluid located in the fluid chamber 20. When a force acting in the feed direction 22 force is applied to the driver 14 of the plunger 21 is moved through an opening 24 (Fig. 2) and can retract into the escape channel 27, so that the driver 14 is decoupled from the plunger 21. When a force acting against the feed direction 22 is exerted on the driver 14, the coupling piece 22 of the tappet 21 is moved through a further opening 25 (FIG. 2) of the holding device 16, so that the driver 14 likewise exerts excessive pulling action on the movable furniture part 3 can be decoupled from the plunger 21. FIG. 3b shows the furniture drive 13 shown in FIG. 3a in a perspective view.

Fig. 4a zeigt den Möbelantrieb 13 in einer Seitenansicht, wobei der Stößel 21 durch eine Überschreitung einer in Einzugsrichtung 22 wirkenden Kraftausübung auf den Mitnehmer 14 von diesem entkoppelt ist. Durch diese übermäßige Kraftausübung auf den Mitnehmer 14 in Einzugsrichtung 22 wurde nämlich das Koppelstück 29 des Stößels 21 ausgehend von der Aufnahmekammer 26 durch die Öffnung 24 hindurch in den Ausweichkanal 27 der Haltevorrichtung 16 hineingedrängt, sodass der Mitnehmer 14 ohne eine weitere Relativbewegung zwischen Stößel 21 und Fluidkammer 20 weiter in Einzugsrichtung 22 bewegbar ist. Durch eine manuelle Zugbewegung auf das bewegbare Möbelteil 3 kann das Koppelstück 29 des Stößels 21 wieder mit der Aufnahmekammer 26 der Haltevorrichtung 16 gekoppelt werden. Fig. 4b zeigt den in Figur 4a eingekreisten Bereich in einer vergrößerten Ansicht. Fig. 5a zeigt den Möbelantrieb 13 in einer Seitenansicht, wobei der Stößel 21 durch eine Überschreitung einer entgegen der Einzugsrichtung 22 wirkenden Kraftausübung auf den Mitnehmer 14 von diesem entkoppelt ist. Durch diese übermäßige Kraftausübung auf den Mitnehmer 14 entgegen der Einzugsrichtung 22 wurde nämlich das Koppelstück 29 des Stößels 21 ausgehend von der Aufnahmekammer 26 durch die weitere Öffnung 25 hindurch in einen seitlich neben der Aufnahmekammer 26 vorhandenen Freiraum bewegt, sodass der Mitnehmer 14 ohne eine weitere Relativbewegung zwischen Stößel 21 und Fluidkammer 20 weiter entgegen der Einzugsrichtung 22 (d.h. in Richtung Parkposition) bewegbar ist. Durch eine manuelle Druckausübung auf das bewegbare Möbelteil 3 kann das Koppelstück 29 des Stößels 21 wieder mit der Aufnahmekammer 26 der Haltevorrichtung 16 gekoppelt werden. Fig. 5b zeigt den in Figur 5a eingekreisten Bereich in einer vergrößerten Ansicht Fig. 4a shows the furniture drive 13 in a side view, wherein the plunger 21 is decoupled by exceeding a force acting in the feed direction 22 force on the driver 14 of this. Due to this excessive exertion of force on the driver 14 in the feed direction 22 namely the coupling piece 29 of the plunger 21 has been urged starting from the receiving chamber 26 through the opening 24 into the escape channel 27 of the holding device 16, so that the driver 14 without further relative movement between plunger 21 and Fluid chamber 20 is further movable in the feed direction 22. By a manual pulling movement on the movable furniture part 3, the coupling piece 29 of the plunger 21 can be coupled to the receiving chamber 26 of the holding device 16 again. 4b shows the area circled in FIG. 4a in an enlarged view. 5a shows the furniture drive 13 in a side view, wherein the plunger 21 is decoupled from exceeding this by a force acting against the feed direction 22 on the driver 14 of this. By this excessive application of force to the driver 14 against the feed direction 22 namely the coupling piece 29 of the plunger 21 was moved starting from the receiving chamber 26 through the further opening 25 into a laterally adjacent to the receiving chamber 26 clearance, so that the driver 14 without a further relative movement between plunger 21 and fluid chamber 20 further against the feed direction 22 (ie in the parking position) is movable. By a manual pressure on the movable furniture part 3, the coupling piece 29 of the plunger 21 can be coupled to the receiving chamber 26 of the holding device 16 again. Fig. 5b shows the circled in Figure 5a area in an enlarged view

Im gezeigten Ausführungsbeispiel sind die beiden Halteelemente 28a, 28b von einem Kraftspeicher 30 beaufschlagt, wobei dieser Kraftspeicher 30 von einem mechanischen Federelement oder auch von einer Eigenelastizität der Haltelemente 28a, 28b gebildet sein kann. Die Halteelemente 28a, 28b sind oberhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer 14 in einer quer zur Längsrichtung des Stößels 21 verlaufenden Richtung verformbar oder verbiegbar ausgebildet ist, sodass der Mitnehmer 14 vom Stößel 21 entkoppelbar ist. Auch ist es möglich, die elastische Vorspannung der Halteelemente 28a, 28b in Richtung des Koppelstückes 29 einstellbar zu gestalten. Dies kann beispielsweise mittels einer (hier nicht gezeigten) Einstellschraube erfolgen, wobei durch Drehung der Einstellschraube die Vorspannung des Kraftspeichers 30 und damit die Auslösekraft der Halteelemente 28a, 28b einstellbar ist. In the embodiment shown, the two holding elements 28a, 28b acted upon by a force accumulator 30, said force accumulator 30 of a mechanical Spring element or by an inherent elasticity of the holding elements 28a, 28b may be formed. The holding elements 28a, 28b are formed deformable or bendable above a predetermined force on the driver 14 in a direction transverse to the longitudinal direction of the plunger 21 direction, so that the driver 14 can be decoupled from the plunger 21. It is also possible to make the elastic bias of the holding elements 28a, 28b adjustable in the direction of the coupling piece 29. This can be done for example by means of a (not shown here) adjusting screw, by rotation of the adjusting screw, the bias of the energy accumulator 30 and thus the release force of the holding elements 28a, 28b is adjustable.

In den gezeigten Ausführungsbeispielen weist die Dämpfvorrichtung 19 eine relativ zu Fluidkammer 20 verschiebbar gelagerte Kolbenstange auf, wobei der Stößel 21 von der Kolbenstange gebildet ist. In kinematischer Umkehr ist es auch möglich, das freie Ende der Kolbenstange in Montagelage ortsfest abzustützen, sodass die Fluidkammer 20 (d.h. der Dämpfungszylinder) zur Ausführung eines Dämpfungshubes relativ zur feststehenden Kolbenstange verschiebbar ist. In diesem Fall wird der Stößel 21 durch den Dämpfungszylinder gebildet. In the embodiments shown, the damping device 19 has a relative to the fluid chamber 20 slidably mounted piston rod, wherein the plunger 21 is formed by the piston rod. In kinematic reversal, it is also possible to stationarily support the free end of the piston rod in the mounting position so that the fluid chamber 20 (i.e., the damping cylinder) is slidable relative to the fixed piston rod for performing a damping stroke. In this case, the plunger 21 is formed by the damping cylinder.

Claims

Patentansprüche claims 1 . Möbelantrieb (13) zum Einziehen eines bewegbar gelagerten Möbelteiles (3) in eine geschlossene Endlage relativ zu einem Möbelkorpus (2), umfassend: 1 . Furniture drive (13) for drawing a movably mounted furniture part (3) in a closed end position relative to a furniture body (2), comprising: - einen Mitnehmer (14) zum Einziehen des bewegbaren Möbelteiles (3), wobei der Mitnehmer (14) zumindest abschnittsweise entlang eines linearen Verfahrweges (31 a) verfahrbar gelagert ist und welcher mit dem bewegbaren Möbelteil (3) lösbar koppelbar ist,  - A driver (14) for pulling the movable furniture part (3), wherein the driver (14) at least partially along a linear travel path (31 a) is movably mounted and which with the movable furniture part (3) is releasably coupled, - eine Federvorrichtung (17) zur Kraftbeaufschlagung des Mitnehmers (14) in eine Einzugsrichtung (22),  - A spring device (17) for applying force to the driver (14) in a feed direction (22), - eine Dämpfvorrichtung (19) zum Dämpfen einer Bewegung des Mitnehmers (14) in Einzugsrichtung (22), wobei die Dämpfvorrichtung (19) eine Fluidkammer (20) und einen relativ zur Fluidkammer (20) verschiebbar gelagerten Stößel (21 ) aufweist,  - a damping device (19) for damping a movement of the driver (14) in the feed direction (22), wherein the damping device (19) has a fluid chamber (20) and a relative to the fluid chamber (20) slidably mounted plunger (21), - eine Haltevorrichtung (16), welche zwischen dem Stößel (21 ) und dem Mitnehmer (14) angeordnet ist, wobei die Haltevorrichtung (16) den Stößel (21 ) relativ zum Mitnehmer (14) hält,  - A holding device (16) which is arranged between the plunger (21) and the driver (14), wherein the holding device (16) holds the plunger (21) relative to the driver (14), dadurch gekennzeichnet, dass der Stößel (21 ) bei Überschreitung einer in Einzugsrichtung (22) wirkenden Kraftausübung auf den Mitnehmer (14) durch eine Öffnung (24) der Haltevorrichtung (16) hindurch bewegbar und so der Mitnehmer (14) vom Stößel (21 ) entkoppelbar ist.  characterized in that the plunger (21) when exceeding a force acting in the feed direction (22) force on the driver (14) through an opening (24) of the holding device (16) through and so the driver (14) from the plunger (21) can be decoupled. 2. Möbelantrieb nach Anspruch 1 , dadurch gekennzeichnet, dass Stößel (21 ) auch bei Überschreitung einer entgegen der Einzugsrichtung (22) wirkenden Kraftausübung auf den Mitnehmer (14) durch eine weitere Öffnung (25) der Haltevorrichtung (16) hindurch bewegbar und so der Mitnehmer (14) vom Stößel (21 ) entkoppelbar ist. 2. Furniture drive according to claim 1, characterized in that the plunger (21) even when exceeding a counter to the feed direction (22) acting force on the driver (14) through a further opening (25) of the holding device (16) movable therethrough and so Driver (14) from the plunger (21) can be decoupled. 3. Möbelantrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Haltevorrichtung (16) zumindest ein Halteelement (28a) aufweist, welches den Stößel (21 ) unterhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer (14) relativ zur Halteeinrichtung (16) hält und welches oberhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer (14) eine zerstörungsfreie translatorische Bewegung des Stößels (21 ) relativ zum Mitnehmer (14) gestattet. 3. Furniture drive according to claim 1 or 2, characterized in that the holding device (16) has at least one holding element (28 a) which holds the plunger (21) below a predetermined force on the driver (14) relative to the holding device (16) and which above one predetermined force on the driver (14) allows a non-destructive translational movement of the plunger (21) relative to the driver (14). 4. Möbelantrieb nach Anspruch 3, dadurch gekennzeichnet, dass das zumindest eine Halteelement (28a) von einem Kraftspeicher (30) beaufschlagt ist. 4. Furniture drive according to claim 3, characterized in that the at least one holding element (28 a) is acted upon by a force accumulator (30). 5. Möbelantrieb nach Anspruch 4, dadurch gekennzeichnet, dass der Kraftspeicher (30) von einem mechanischen Federelement oder von einer Eigenelastizität des Halteelementes (28a) gebildet ist. 5. Furniture drive according to claim 4, characterized in that the force accumulator (30) is formed by a mechanical spring element or by an inherent elasticity of the holding element (28 a). 6. Möbelantrieb nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das zumindest eine Halteelement (28a) oberhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer (14) in einer quer zur Längsrichtung des Stößels (21 ) verlaufenden Richtung verformbar oder verbiegbar ausgebildet ist, sodass der Mitnehmer (14) vom Stößel (21 ) entkoppelbar ist. 6. Furniture drive according to one of claims 3 to 5, characterized in that the at least one holding element (28a) above a predetermined force on the driver (14) in a direction transverse to the longitudinal direction of the plunger (21) extending direction is deformable or bendable, so that the driver (14) from the plunger (21) is decoupled. 7. Möbelantrieb nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass die Haltevorrichtung (16) zumindest zwei Halteelemente (28a, 28b) zum Halten des Stößels (21 ) aufweist. 7. Furniture drive according to one of claims 3 to 6, characterized in that the holding device (16) has at least two holding elements (28 a, 28 b) for holding the plunger (21). 8. Möbelantrieb nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Haltevorrichtung (16) über eine Gelenkachse (15) mit dem Mitnehmer (14) schwenkbar verbunden ist. 8. Furniture drive according to one of claims 1 to 7, characterized in that the holding device (16) via a hinge axis (15) with the driver (14) is pivotally connected. 9. Möbelantrieb nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Haltevorrichtung (16) zumindest einen Ausweichkanal (27) aufweist, in welchen der Stößel (21 ) oberhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer (14) einfahrbar ist. 9. Furniture drive according to one of claims 1 to 8, characterized in that the holding device (16) has at least one escape channel (27), in which the plunger (21) above a predetermined force on the driver (14) is retractable. 10. Möbelantrieb nach Anspruch 9, dadurch gekennzeichnet, dass Ausweichkanal (27) eine Längsrichtung aufweist, welche koaxial zu einer Längsrichtung des Stößels (21 ) verläuft. Möbelantrieb nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Stößel (21 ) einen freien Endbereich mit einem daran angeordneten oder ausgebildeten Koppelstück (29) aufweist, wobei das Koppelstück (29) unterhalb einer vorgegebenen Krafteinwirkung auf den Mitnehmer (14) in einer Aufnahmekammer (26) der Haltevorrichtung (16) gehalten ist. 10. Furniture drive according to claim 9, characterized in that the escape channel (27) has a longitudinal direction which extends coaxially to a longitudinal direction of the plunger (21). Furniture drive according to one of claims 1 to 10, characterized in that the plunger (21) has a free end portion with a coupling piece (29) arranged thereon or formed, wherein the coupling piece (29) below a predetermined force on the driver (14) in a receiving chamber (26) of the holding device (16) is held. Möbelantrieb nach einem der Ansprüche 1 bis 1 1 , dadurch gekennzeichnet, dass der Möbelantrieb (13) ein Gehäuse (18) mit zumindest einer Führung (18a) aufweist, wobei die Haltevorrichtung (16) entlang der Führung (18a) relativ zum Gehäuse (18) verschiebbar gelagert ist. Furniture drive according to one of claims 1 to 1 1, characterized in that the furniture drive (13) has a housing (18) with at least one guide (18a), wherein the holding device (16) along the guide (18a) relative to the housing (18 ) is slidably mounted. Möbelantrieb nach Anspruch 12, dadurch gekennzeichnet, dass die Haltevorrichtung (16) zumindest ein Führungselement (33) aufweist, welches entlang der Führung (18a) des Gehäuses (18) verschiebbar gelagert ist. Furniture drive according to claim 12, characterized in that the holding device (16) has at least one guide element (33) which is displaceably mounted along the guide (18a) of the housing (18). Möbelantrieb nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass die Dämpfvorrichtung (19) eine relativ zu Fluidkammer (20) verschiebbar gelagerte Kolbenstange aufweist, wobei der Stößel (21 ) von der Kolbenstange gebildet ist. Furniture drive according to one of claims 1 to 13, characterized in that the damping device (19) has a relative to the fluid chamber (20) displaceably mounted piston rod, wherein the plunger (21) is formed by the piston rod. Schubladenausziehführung (4) mit einer an einem Möbelkorpus (2) zu befestigenden Korpusschiene (9) und mit zumindest einer Ausziehschiene (10), welche relativ zur Korpusschiene (9) zwischen einer Schließstellung und einer Offenstellung verfahrbar gelagert ist, und mit einem Möbelantrieb (13) nach einem der Ansprüche 1 bis 14 zum Einziehen der Ausziehschiene (10) in die Schließstellung. Drawer pull-out guide (4) with a cabinet rail (9) to be fastened to a furniture carcass (2) and with at least one pull-out rail (10) which is movably mounted between a closed position and an open position relative to the carcass rail (9), and with a furniture drive (13 ) according to one of claims 1 to 14 for pulling the pull-out rail (10) in the closed position.
EP17706403.7A 2016-04-05 2017-02-09 Furniture drive Active EP3439505B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50274/2016A AT518398B1 (en) 2016-04-05 2016-04-05 furniture drive
PCT/AT2017/060023 WO2017173469A2 (en) 2016-04-05 2017-02-09 Furniture drive

Publications (2)

Publication Number Publication Date
EP3439505A2 true EP3439505A2 (en) 2019-02-13
EP3439505B1 EP3439505B1 (en) 2020-04-01

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ID=58098381

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Application Number Title Priority Date Filing Date
EP17706403.7A Active EP3439505B1 (en) 2016-04-05 2017-02-09 Furniture drive

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US (1) US10653240B2 (en)
EP (1) EP3439505B1 (en)
JP (1) JP6732937B2 (en)
CN (1) CN108882794B (en)
AT (1) AT518398B1 (en)
ES (1) ES2802573T3 (en)
MY (1) MY191813A (en)
WO (1) WO2017173469A2 (en)

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Also Published As

Publication number Publication date
US20190008276A1 (en) 2019-01-10
MY191813A (en) 2022-07-18
EP3439505B1 (en) 2020-04-01
ES2802573T3 (en) 2021-01-20
JP2019510578A (en) 2019-04-18
WO2017173469A3 (en) 2017-11-30
CN108882794B (en) 2020-05-26
AT518398A4 (en) 2017-10-15
WO2017173469A2 (en) 2017-10-12
AT518398B1 (en) 2017-10-15
US10653240B2 (en) 2020-05-19
JP6732937B2 (en) 2020-07-29
CN108882794A (en) 2018-11-23

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